بَابُ اسْتِحْبَابِ الدُّعَاءِ سِرّاً وَ خُفْيَةً وَ اخْتِيَارِهِ عَلَى الدُّعَاءِ عَلَانِيَةً“Chapter on the desirability of du`aa in privately and secretly and the preference over the du`aa (done) outwardly”